Re: [Discussion] Implement Partition Table Feature

2017-04-19 Thread Liang Chen
Hi Agree, we don't need to add special constrain for one column be together existing in partition key and SORT_COLUMNS. But from actual case, don't suggest giving partition key is same as the first column of SORT_COLUMNS, maybe we need to add the tips to partition feature's document. Regards Lia

Re: [DISCUSSION] Forceful minor Compaction

2017-04-19 Thread Kunal Kapoor
Hi Liang, Currently the user cannot choose which segments should be merged or not. We should give a DDL which supports both forceful minor and major compaction separately. Another point would be if the user can specify the segments which he needs merged. Obviously the segments that can be given sh

Re: [DISCUSSION] Forceful minor Compaction

2017-04-19 Thread Liang Chen
Hi Kunal Thank you for taking the good topic for discussion. First , let us think about : why users want to do forceful minor compaction, which cases? Current "MAJOR compaction" whether can cover "forceful MINOR compaction" scenarios ? As we know, compaction is mainly for optimizing index effect

[jira] [Created] (CARBONDATA-958) Schema modified time not updated in modifiedtime.mdt when dictionary column is updated to no-dictionary column due to high cardinality

2017-04-19 Thread Raghunandan S (JIRA)
Raghunandan S created CARBONDATA-958: Summary: Schema modified time not updated in modifiedtime.mdt when dictionary column is updated to no-dictionary column due to high cardinality Key: CARBONDATA-958 URL: ht

Re: CarbonLock Exception refractor

2017-04-19 Thread Liang Chen
Hi William +1 for improving CarbonLock Exception. Do you have any proposed solution for this improvement, and can you raise one PR for it. Regards Liang Venkata Gollamudi wrote > Yes, that can be more meaningful, detailing the exception type. Any > related > changes are welcome. > > On Wed, A